Occasional low-grade fever, discomfort in the throat and abdomen, headache, but normal blood test results—what could be the cause?

The abdomen refers to the belly. In general, occasional low-grade fever accompanied by discomfort in the throat and abdomen, headache, and normal blood test results may be caused by conditions such as the common cold, tonsillitis, chronic gastritis, rheumatoid arthritis, or systemic lupus erythematosus. Targeted treatments are required. It is recommended to seek medical diagnosis and treatment promptly. Specific analyses are as follows:

1. Common Cold

The common cold is a viral respiratory infection caused by various types of viruses, often accompanied by low-grade fever, sore throat, and headache. Sneezing, influenza-like symptoms, cough, and nasal congestion are also typical signs. Symptoms can be relieved with antiviral oral liquids, Lianhua Qingwen capsules, or Ganmao Ling granules, based on a doctor's advice.

2. Tonsillitis

Tonsillitis is usually caused by bacterial or viral infections and can lead to sore throat, low-grade fever, difficulty swallowing, redness and swelling of the tonsils, and headache. Treatment may include medications such as compound Honeysuckle granules, Amoxicillin capsules, or Roxithromycin tablets, as recommended by a physician.

3. Chronic Gastritis

Chronic gastritis is a long-term inflammation of the gastric mucosa. Abdominal discomfort may be related to chronic gastritis, while throat discomfort and headache could be part of a systemic inflammatory response. Chronic gastritis is often accompanied by other digestive symptoms such as indigestion and loss of appetite. Following medical advice, medications like Amoxicillin capsules, Bismuth Potassium Citrate tablets, or Colloidal Pectin Bismuth capsules may help alleviate symptoms.

4. Rheumatoid Arthritis

Rheumatoid arthritis is an autoimmune disorder that may cause systemic fatigue and joint pain. Although it primarily affects the joints, it can also produce systemic symptoms such as fatigue and low-grade fever. Treatment under medical supervision may include Hydroxychloroquine Sulfate tablets, Azathioprine tablets, or Methylprednisolone tablets.

5. Systemic Lupus Erythematosus

Systemic lupus erythematosus (SLE) is an autoimmune connective tissue disease that can cause systemic symptoms such as fever and fatigue. The aforementioned symptoms might be manifestations of SLE. Under a doctor’s guidance, medications such as Danazol capsules, Tripterygium glycosides tablets, or Mycophenolate mofetil for injection may be used to relieve discomfort.

In daily life, maintaining a balanced diet, drinking plenty of water, and engaging in moderate exercise can help regulate overall health.